28168749 (number)

28168749 is an odd 8-digits composite number following 28168748 and preceding 28168750. In scientific notation, it is written as 2.8168749 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 15929136 positive integers (up to 28168749) that are relatively prime to 28168749.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred sixty-eight thousand seven hundred forty-nine

Notation

Scientific notation 2.8168749 × 10^7
Engineering notation 2.8168749 × 10^6

Prime Factorization of 28168749

Prime Factorization 21 × 9 × 103 × 1447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28168749
Product of the distinct prime numbers

The prime factorization of 28168749 is 21 × 9 × 103 × 1447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 2, 66, 55, 941, 923, 7934, 6743, 10147, 53087, 89727, 956747, 6145364, 4372446, 55520277, 29464625, 720175478, 864169364, 5316994283, 4520140796

Basic calculations (n = 28168749)

Multiplication

n×y
n×2 56337498
n×3 84506247
n×4 112674996
n×5 140843745

Division

n÷y
n÷2 14084374.5
n÷3 9389583
n÷3 7042187.25
n÷5 5633749.8

Exponentiation

ny
n2 793478420225001
n3 2.2351294456235E+22
n4 6.2960800336276E+29
n5 1.7735269815117E+37

Nth Root

y√n
2√n 5307.4239514099
3√n 304.26770120364
4√n 72.852068957648
5√n 30.899646570307

Divisors of 28168749

1, 9, 21, 103, 189, 927, 1447, 2163, 13023, 19467, 30387, 149041, 273483, 1341369, 3129861, 28168749

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28168748
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28168749 can be divided by 16 positive divisors. The sum of these divisors (counting 28168749) is 1, the average is 0.0625.

Base conversion 28168749

Base System Value
2 Binary 1101011011101001000101101
3 Ternary 1222000010021000
4 Quaternary 1223131020231
5 Quinary 24202344444
6 Senary 2443430513
8 Octal 153351055
10 Decimal 28168749
12 Duodecimal 9525439
16 Hexadecimal 1add22d
20 Vigesimal 8g11h9
36 Base36 grr59

Cryptographic Hash Functions

md5 4d421787d53643ee6a058f120f985754
sha1 41bf7ae82c4b857ac38e8b6a530f41098a43a3db
sha256 e1b1f41f62f6102db0e0079374c299017e5c3fa475fd4f10b61abd2098db85ad
sha512 1c963672db6d00a5ca753c8adb100961a43919cd3398855479f5223f934721bff0d14b9d9a9febc13adfa541f291f47d1c1fa0c45abad0d66bff83a2c5ff0455
ripemd-160 c451e0d0d950a8d4a1c13e19fa3845d71657cb41

28168749 as geometric shapes

Circle

Radius = n
Diameter 56337498
Circumference 176989469.83843
Area 2.4927859757609E+15

Sphere

Radius = n
Volume 9.3624883282572E+22
Surface area 9.9711439030436E+15
Circumference 176989469.83843

Square

Length = n
Perimeter 112674996
Area 793478420225001
Diagonal 39836626.870884

Cube

Length = n
Surface area 4760870521350006
Volume 2.2351294456235E+22
Space diagonal 48789704.453655

Equilateral Triangle

Length = n
Perimeter 84506247
Area 3.435862346348E+14
Altitude 24394852.226828

Triangular Pyramid

Length = n
Surface area 3.435862346348E+14
Volume 2.6341253130501E+21
Height 13278875.623628